Power-loom for weaving textile fabrics.



`L. E. SALISBURY.. POWER LOOM EOE WEAVING TEXTILE FABRICS.

AIPLIUATION PILE-D NOV. 6,`1907.

Patented; Apr. 19, 1910.

2 SHEETS-SHEET 1.

L. E.. SALISBURY.

v POWER LOOM FOB. WEAVING TEXTILE FABRICS. v APPLICATION FILED Nov. s,1907.

1., Patented Apr. 19,19l0.

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ANnnEw l1 GRAHAM co Pno'mumnamwsm wnsmumow n n UNITE STAES ATENT OFFICE.

LEVI E. SALISBURY, OF PROVIDENCE, RHODE ISLAND.

POWER-LOOM FOR INEAVING TEXTILE FABRICS.

To all whom it may concern.

Be it known that I, LEVI E. SALIsBURY, a citizen 0f the United States ofAmerica, and a resident of Providence, in the county of Providence andState of Rhode Island, have invented certain new and useful Improvementsin Power-Looms for leaving TeX- tile Fabrics, of which the following isa specification.

My present invention relates to improvements in looms for weavingtextile fabrics.

I/Vhile the invention forming the subject of this application for patentmay be employed in any loom in which the harnesses and reeds are dividedtransversely into independent sections actuated in a predetermined orderor succession, the invention is more particularly adapted to looms inwhich non-reciprocating shuttles are arranged to follow one another atregular intervals in a continuous manner, each shuttle beingautomatically charged with a length of weftyarn to produce one pickwhich it delivers between the warp-yarns, the latter being properly shedimmediately in advance of and in unison with the traveling shuttle; at

' the same time the reed sections are being successively actuated at therear of the shuttle to beat up the thus delivered weftyarn into thefabric.

In my U. S. Patent No. 720,181 is illustrated and described an automaticmultipleshuttle loom embodying the above named features and adapted toproduce woven textile fabrics in the manner indicated.

In looms as usually devised, wherein the reed is mounted in a singleswinging lathe or lay which extends entirely across the loom, a largepercentage of the power for driving the loom is required to oscillatethe lathe in beating up the weft or filling yarn. In looms having thereed divided transversely into sections which are actuated in asuccessive manner the percentage of power for actuating the reed is ormay be materially reduced. In some cases, however, it is a difiicultmatter to properly adjust the reed sections and the means for operatingthem so as to impart a uniform degree of force or pressure upon the pickthroughout its length, being the width of the cloth, the re-Speciication of Letters Patent.

Application filed. November 6, 1907.

Patented Apr. 19, 1910.

Serial No. 400,922.

sult bein@ the production of goods having more or Iess imperfectionstherein.

The object I have in view in my present f invention is to providecontinuous multipleshuttle or positive motion shuttle looms with a novelmanner of and means for beating up each weft-yarn or pick concurrentlywith its delivery from the rear end of the shuttle; or in other wordsthe pick is acted upon by the reed while the shuttle is stillbeingpropelled through the shedded warp-yarns.

To this end the invention consists, essentially, in segregating,supporting and guiding the several dents composing the reed, combinedwith means for positively swinging the dents one after another in asuccessive manner forth and back from the normal position to engage theweft-yarn as in beating it up.

It also consists in constructing the dentactuating mechanism so that theact of engaging the unbeaten pick and pressing it laterally into thefabric is not accomplished instantly by one dent alone but by aplurality or continuously changing series of the dents, the latter whenadvanced having the working face of said series arranged to form acontinuously produced angle with respect to the last laid and Vbeaten uppick so that the weft-yarn then being acted upon by the dents isgradually forced home into the fabric concurrently with the delivery ofsaid yarn from the shuttle. At regular intervals across the loom Some ofthe dents comprising the reed are further constructed so as to form acombined support and guide for the traveling shuttles, said guides beingin alinement when the dents are in the normal rearward position. Whenthe loom is in operation the action of the mechanism causes the dents ofthe reed to present a wave-like movement, one wave following anotheruniformly across the loom, a shuttle being disposed between the wavesand travcling in unison with them.

In the two accompanying sheets of drawings, Figure l represents a planView of a multiple-shuttle loom embodying my present invention, many ofthe parts not deemed essential herewith being omitted. Fig. 2 is atransverse sectional view, enlarged, taken substantially on line 2 2 ofFig. 1. Fig. 3 is a plan view, still further enlarged, showing a portionof the shuttle and cam-carrying chain, and also showing a part of thechain-supporting frame. Fig. 4L is a trans` verse section, taken on line4 a of Fig. 3, and also showing the relation of the dentsupporting rodor shaft to the chain. Fig. 5 is a longitudinal sectional view, taken onthe irregular line 5 5 of Fig. il. Fig. (5 is an inverted plan viewshowing a portion of the chain-supporting frame. Fig. 7 is a sideelevation of one of the reed dents loosely supported on said rod orshaft, the dents being in the retracted or normal position. Fig. S is acorresponding front or edge view showing a plurality of the dents. Fig.9 is a side view, similar to Fig. T, showing a dent adapted to receive ashuttle, the latter being indicated by dotted lines. Fig. l0 is acorresponding front view of the same,

. and Fig. ll is a plan view representing in a somewhat exaggeratedmanner a portion of the woven fabric and the relation of the dents tothe last delivered weft-yarn while the latter is being acted upon by thereed, the line of section being taken substantially at and parallel withthe upper surface of the fabric.

The general construction and manner of operation of the loom, portionsof which are represented in the drawings herewith, are set forth in mysaid patented loom and to which reference may be had for a more detaileddescription.

ln the annexed drawings A designates a part of the loom frame, 'w thewarp-yarns, l) the harnesses divided transversely into short lengths orsub-sections, ll a horizontal chain-guide or track secured to thebreastbeam Z3 and disposed between the latter and the harnesses, and l acontinuous or endless chain for carrying the self-threading shuttles Jand the reed-actuating means; the reed-moving links alternate with theshuttle-carrying links.

'ihe present invention resides more especially, as before stated, in thenovel reed, its action and means for effecting the same. The reed, as awhole, is indicated by R, and consists of the laterally separatedindividual members or dents a arranged and supported on a lixed rod orshaft g located below the chain-guide H. rFhe dents t are cut or punchedfrom suitable thin sheet-metal stock, as steel. Each dent extendsupwardly through the upper and lower warps tu (see Figs. 2 and 7), thefront edge of the free end of the members a being cut at an angle orotherwise adapted to present a substantially perpendicular working face,as a3, to the transverse edge of the fabric .e when they are advanced,as in beating up the weft. To one side of each of the members a isriveted or otherwise secured a shorter sheet-metal member al. The saidtwo parts, e al, constitute a dent proper; these are assembled closelyin a successive manner on the shaft g, the upper portions beingseparated laterally by spaces a each alining with and equal in thicknessto that of a member al, as indicated in Fig. 8. As thus devised andarranged the dents of the reed lt are independently movable, the upperends being unsupported and adapted to freely receive therebetween in therespective spaces s one or more of the warps to.

The means, as drawn, for actuating and controlling the movements of themembers of the reed are as follows: The several links of the chain l areointed at and are provided with a continuous cam-groove or track m. Thegroove portion in each alternate link, however, is deflected at an angletoward the frontof the loom, see m1, Fig. 3, thence it extends a shortdistance at a slight angle, mi, into a straight part, m3, and isdeflected rearwardly therefrom into a part, mi, terminating in part m,the latter being in alinement with the corresponding portion formed inthe front or advance end of the link. T he drawing represents thecamcarrying members of the links as being secured to thin top plates t',the ends o of the links abutting when moving in a straight course. rl`heupper end of said member al of each dent is enlarged, see a2, andextends into the cam-groove, at the same time contacting with theadjacent sides thereof.

ln order to allow the members al of the dents to pass upwardly throughthe underside of the chain-guide H the latter has an opening, n,therethrough extending the length of the reed, its width permitting freeaxial movement of the members from the normal to the working or beatingup position. rlhe members al may be laterally guided by means ofcorrespondingly spaced short interposed light metal bars f' having theirends suitably mounted in the two parallel strips e removably secured tothe underside of frame H. See Figs. el, 5 and 6. In this arrangement themembers al of the dents may be readily introduced in the respectivespaces f1 separating the bars. See Fig. 5. lf desired thin cap plates c1may be secured to said strips e and overlap the ends of the bars, thuslocking the latter in place. rlhis construction readily permits thesubstitution of reeds having coarser or ner dents as the case may be, atthe same time of course changing the bar-carrying strips e for otherscorresponding with the reed thus selected.

The operation of the loom, or rather that of the parts illustrated inthe drawings, may be described as follows: The alternate links of thecontinuously traveling chain I, carrying the weft-holding shuttles J,deliver the weft or pick yarn w1 successively between the upper andlower series of suitably shedded warps w; the cams carried by theintermediate links of the chain at the same time causing the dents ofthe reed R to beat up the weft into the web e. The dents adjacent eachshuttle support the latter and are maintained temporarily stationary inthe rearward or normal alining position, said alinement being formedconcurrently and in unison with the shuttles forward movement. yAs soonas the shuttle commences to place its yarn w1 between the warps the nextsucceeding short sections of the harnesses P are shed so as to inclosesaid yarn, the forward portion, m1, of the cam groove of the linkimmediately following the shuttle next causes the dents to successivelyadvance axially and engage said yarn Vand gradually press it home intothe web being woven, the cam part m4 acting to return the dents to thenormal alining position again in advance of the next succeeding shuttle.This novel feature is illustrated somewhat diagrammatically and inenlarged scale in Fig. 11. Assuming the chain to be moving toward theright, the advance or unacted upon portion of the weft-yarn, marked wf,then being delivered by the corresponding shuttle (not shown), issuccessively engaged by the deiected dents a, see arrow, which in turnare acted upon by the slightly inclined cam part m2 (shown in Fig. 3)thus arranging the corresponding dents into a continuously producedseries, marked r2; their working edges, indicated at m5, being inclinedwith respect to the normally beaten up weft-yarns of the fabric. Thus itwill be seen that instead of fully beating up the weft by a single quickand direct action of the dent the latter is actuated in a gradual orstep-by-step manner, as it may be termed. The active dents may bemaintained in the fully advanced position in contact with the pick ashort distance, corresponding say to the length of the cam part m3, Fig.3, after which the dents are successively retracted by means of therearward deflecting cam part m4 into the straight normally inactiveposition, preparatory to being again acted upon by the next succeedingcam-link to repeat the cycle of operations.

What I claim as my invention, and desire to secure by United StatesLetters Patent, is

1. In a loom, the combination of a reed composed of a plurality ofpivotally mounted dents, each capable of movement through a circulararc, mechanism adapted for moving the outer or free ends of the dents ina consecutive order from their normal position to a point near thenormal position of the fell of the fabric being woven, means cooperatingwith said mechanism adapted to complete the said movement of the dents,and means for swinging the dents back to the normal position.

2. In a multiple-shuttle power loom for producing textile fabrics, acontinuously traveling chain having each of the alternate links thereofadapted to support and carry a weft-shuttle and having the intermediatelinks provided with a cam device, in combination with a xed rod orshaft, and a shuttle engaging reed comprising a plurality of suitablyspaced normally alining individual dent members supported by and capableof independent angular movement on said shaft, the upper or free endportions of the dents being constructed so as to extend through thewarps and having another portion in continuous contact with saidtraveling chain, whereby each said cam device of the latter causes thedents to swing successively from the rearward or normal position to beatup the weft-yarn and to return them back again to the normal position tobe acted upon by the next succeeding cam, substantially as described.

3. In a loom of the character described, the combination with a reedconsisting of laterally separated individually actuated dents, and ashaft having the latter' mounted and angularly movable thereon, of asuitably supported traveling cam having t-he dents operatively connectedtherewith, said cam being constructed so that when in action, as inmoving across the loom, it operates to successively advance the saidindividual dents in regular order to gradually beat up the weft-yarn andto return said dents to the rearward or normal position immediatelythereafter.

4. In a loom of the character described, a reed consisting of suitablymounted individually movable dent members, each having its upper portionadapted to extend freely through the adjacent warps, and having some ofthe said dents provided with shuttlc-supporting means arranged to form anormally alining race-way for the shuttles.

5. In a loom, the combination of a reed consisting of individuallymovablev dent members, means adapted when in use for quickly advancingthe dents singly and in a successive order to a position contiguous tothe web being produced, and means adapted to coperate with said othermeans for completing the advance movement of the dents in a relativelyslower inanner to beat up the the weft-thread lying` horizontallybetween wett-thread into the t'a-brie. the Warps, and to then cause eachdent to G. In a looni of the Character described, engage the wett andbeat itr up into the the combination of a reed having the dents fabricin a relatively gradual manner, and thereof pivotallx7 mounted andCapable ot quickly return the dent back t-o said normal individualangular movement in vertical position. planes between and parallel withthe uf'arps, Signed at Providence, I., thiS 28th day and a continuouslytraveling reed-controlot Gctober, 1907. ling device having the dentsengaging there- LEV E. SALSBURY. with, the latter arranged to quicklyand Sueeessively advanceI the dents singly from the norxnal or aliningposition to apoint. near Vv'itneSses Gno. H. RmuNo'roN, HENRY l),Cl'roNn.

